Headquarters Daily report JULY 05, 1995 *************************************************************************** REPORT NEGATIVE NO INPUT ATTACHED INPUT RECEIVED RECEIVED HEADQUARTERS X REGION I X REGION II X REGION III X REGION IV X *************************************************************************** PRIORITY ATTENTION REQUIRED MORNING REPORT - HEADQUARTERS JULY 5, 1995 Licensee/Facility: Notification: Chem-Nuclear Systems, Inc. MR Number: H-95-0109 Barnwell Waste Management Facility Date: 06/29/95 Columbia,South Carolina Licensee meeting Subject: Barnwell Reopen to Generators Outside the Southeast Compact Reportable Event Number: N/A Discussion: On June 29, 1995, NMSS staff met with Chem-Nuclear representatives to discuss a variety of issues related to low-level waste (LLW) management. The staff was informed that the Barnwell LLW disposal facility would begin accepting LLW from throughout the U.S. (except North Carolina) on July 1, 1995. The surcharge for waste disposal is $235 per cubic foot. When disposal fees are added in, the unit cost is about $300 per cubic foot, or about $2200 for a typical 55-gallon (200-liter) drum, or $60,000 for a typical 200 cubic foot liner. Chem-Nuclear is proceeding with development of disposal facilities in North Carolina, Illinois, and Pennsylvania, despite the extension of Barnwell operations. Regional Action: Information only. Contact: Robert Hogg, NMSS (301)415-6751 PRIORITY ATTENTION REQUIRED MORNING REPORT - REGION II JULY 5, 1995 Licensee/Facility: Notification: Entergy Operations, Inc. MR Number: 2-95-0058 Grand Gulf 1 Date: 07/05/95 Port Gibson,Mississippi Dockets: 50-416 BWR/GE-6 Subject: REACTOR SCRAM AND ECCS INJECTION FROM 100 PERCENT POWER DUE TO FEED PUMP TURBINE TRIP Reportable Event Number: 29019 Discussion: A reactor scram from 100 percent power occurred at 8:32 p.m., on July 3, 1995. An I&C functional test was in progress on channel "B" high reactor vessel water level main turbine/reactor feedwater pump turbine trip. This test applies a high (level 8) signal to one of the two non-controlling reactor vessel level instruments (total number of channels 3). The actuation logic for the turbine trips requires two high signals. Both reactor feedwater pump turbines tripped, the main turbine tripped, and a reactor scram was initiated when the high level signal was input into the "B" level channel. Upon loss of both reactor feedwater pumps, actual vessel water level decreased to level 2 (-42 IN) which actuated Reactor Core Isolation Cooling (RCIC) and High Pressure Core Spray (HPCS) systems. The RCIC and HPCS systems restored level as designed. The lowest vessel level achieved was approximately -60 IN. Reactor pressure was maintained by the turbine bypass control valves. Also at level 2, both recirculation pumps tripped, Standby Gas Treatment (SBGT) and Control Room Fresh Air (CRFA) systems actuated, and the Reactor Water Cleanup (RWCU) and auxiliary building isolations occurred as designed. At 10:35 p.m., the "B" reactor feedwater pump was restarted and vessel level controlled with the startup level control valve. The SBGT and CRFA systems were secured. The "A" recirculation pump was restarted at 12:08 a.m., on July 4. The resident inspector responded to the site shortly after the scram occurred and verified that plant conditions were stable. Plant systems responded as designed after the scram and low vessel level condition. The licensee's investigation into the cause for the scram revealed two blown fuses which provided power to the level trip indication on the control board. In addition, channel "C" trip indication light was blown. The licensee believes that at least one logic channel was in the trip condition prior to commencement of the functional test and this condition was not annunciated or indicated in the main control room. When the test was initiated, the actuation logic (2 out of 3) was satisfied to initiate the turbine trips and scram. The blown fuses have been replaced and the functional test completed satisfactory. The licensee restarted the unit late July 4. Regional Action: The resident inspectors are following the licensee's restart actions. Contact: R. BERNHARD (404)331-4664